Creating OOT module

Hi

I have written a block in python and was trying to create an out of tree
module as given in the gnuradio tutorial.
While using cmake …/ the following error occured.
CMake Error: CMake can not determine linker language for
target:gnuradio-dec
CMake Error: Cannot determine link language for target “gnuradio-dec”.

this was rectified by removing the lib directory and the cmake file was
created without error. Then i run the make install and found following
error:

Scanning dependencies of target _dec_swig
[ 46%] Building CXX object
swig/CMakeFiles/_dec_swig.dir/dec_swigPYTHON_wrap.cxx.o
Linking CXX shared module _dec_swig.so
/usr/bin/ld: cannot find -lgnuradio-dec
collect2: error: ld returned 1 exit status
make[2]: *** [swig/_dec_swig.so] Error 1
make[1]: *** [swig/CMakeFiles/_dec_swig.dir/all] Error 2
make: *** [all] Error 2

what should i do to rectify this linking error…

Regards

Hi Sreena,

  1. have you added your block using gr_modtool? otherwise, cmake won’t
    notice it’s there.
  2. if you have, what version of GNU Radio are you using? Support for
    python-only OOT modules have but recently been added.

Greetings,
Marcus

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